26726881 has 2 divisors, whose sum is σ = 26726882. Its totient is φ = 26726880.

The previous prime is 26726857. The next prime is 26726891. The reversal of 26726881 is 18862762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26061025 + 665856 = 5105^2 + 816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26726881 is a prime.

It is a super-2 number, since 2×26726881² = 1428652335976322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26726831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13363440 + 13363441.

It is an arithmetic number, because the mean of its divisors is an integer number (13363441).

Almost surely, 2^26726881 is an apocalyptic number.

It is an amenable number.

26726881 is a deficient number, since it is larger than the sum of its proper divisors (1).

26726881 is an equidigital number, since it uses as much as digits as its factorization.

26726881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 40.

The square root of 26726881 is about 5169.8047351907. The cubic root of 26726881 is about 298.9850180597.

The spelling of 26726881 in words is "twenty-six million, seven hundred twenty-six thousand, eight hundred eighty-one".